The Corps was headquartered in Berlin, with its units garrisoned in the city and nearby towns (Potsdam, Jüterbog, Döberitz). Unlike all other Corps of the Imperial German Army, the Guards Corps did not recruit from a specific area, but from throughout Prussia and the "Imperial Lands" of Alsace-Lorraine.

The 25 peacetime Corps of the German Army (Guards, I - XXI, I - III Bavarian) had a reasonably standardised organisation. Each consisted of two divisions with usually two infantry brigades, one field artillery brigade and a cavalry brigade each.[4] Each brigade normally consisted of two regiments of the appropriate type, so each Corps normally commanded 8 infantry, 4 field artillery and 4 cavalry regiments. There were exceptions to this rule:

The Guards Corps was considerably above this norm, with 11 infantry regiments (in 5 brigades) and 8 cavalry regiments (in 4 brigades). In addition to the normal 2 Infantry Divisions (1st Guards Infantry and 2nd Guards Infantry Divisions), the Guards Corps also commanded the Guards Cavalry Division, the only peacetime cavalry division in the German Army. It also incorporated an exceptional number of "Corps Troops" units, in particular school and demonstration (Lehr) units.

On mobilization on 2 August 1914 the Corps was extensively restructured. The Guards Cavalry Division (less 4th Guards Cavalry Brigade) was assigned to the I Cavalry Corps (Höhere Kavallerie-Kommando 1);[7] the 4th Guards Cavalry Brigade was broken up and its regiments assigned to the divisions as reconnaissance units. The Lehr Infantry Battalion was expanded to form the Lehr Infantry Regiment.[8] It formed 6th Guards Infantry Brigade (with the Guards Füsilier Regiment) and together with the 5th Guards Infantry Brigade formed the 3rd Guards Division of the Guards Reserve Corps. Divisions received engineer companies and other support units from the Corps headquarters.

Histories of Two Hundred and Fifty-One Divisions of the German Army which Participated in the War (1914–1918), compiled from records of Intelligence section of the General Staff, American Expeditionary Forces, at General Headquarters, Chaumont, France 1919. The London Stamp Exchange Ltd (1989). 1920. ISBN0-948130-87-3.

The German Forces in the Field; 7th Revision, 11th November 1918; Compiled by the General Staff, War Office. Imperial War Museum, London and The Battery Press, Inc (1995). 1918. ISBN1-870423-95-X.